Effects of a short-term removal of the dominant male on vocalization in captive groups of large-billed crows ( Corvus macrorynchos ) DOI Creative Commons

Illia Aota,

Masahiro Takano, Ei‐Ichi Izawa

et al.

Royal Society Open Science, Journal Year: 2025, Volume and Issue: 12(4)

Published: April 1, 2025

Dominance hierarchy is widespread among group-living animals as a conflict resolution strategy to avoid the cost and risk of fights individuals. signals are well-known mechanisms that allow individuals assess their opponent’s fighting ability without physical contact, thereby maintaining dominance relationships. In fission–fusion societies, where group composition fluid, status can shift depending on current members. such situations, vocal may be particularly useful due easy modification by signaller. this study, we investigated relationship between rank-dependent behaviours rank ascending temporarily removing from captive groups large-billed crows ( Corvus macrorhynchos ). We removed either first-ranked or third-ranked for 1 day compared remaining members before removal, during removal after rejoined group. found number sequential ka calls, which assumed signal, increased only decreased they These results suggest calls serve signals, subordinates flexibly adjust vocalization presence high-ranked

Language: Английский

Effects of a short-term removal of the dominant male on vocalization in captive groups of large-billed crows ( Corvus macrorynchos ) DOI Creative Commons

Illia Aota,

Masahiro Takano, Ei‐Ichi Izawa

et al.

Royal Society Open Science, Journal Year: 2025, Volume and Issue: 12(4)

Published: April 1, 2025

Dominance hierarchy is widespread among group-living animals as a conflict resolution strategy to avoid the cost and risk of fights individuals. signals are well-known mechanisms that allow individuals assess their opponent’s fighting ability without physical contact, thereby maintaining dominance relationships. In fission–fusion societies, where group composition fluid, status can shift depending on current members. such situations, vocal may be particularly useful due easy modification by signaller. this study, we investigated relationship between rank-dependent behaviours rank ascending temporarily removing from captive groups large-billed crows ( Corvus macrorhynchos ). We removed either first-ranked or third-ranked for 1 day compared remaining members before removal, during removal after rejoined group. found number sequential ka calls, which assumed signal, increased only decreased they These results suggest calls serve signals, subordinates flexibly adjust vocalization presence high-ranked

Language: Английский

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